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UNSIGNED, CIRCA 1890
細節
Swiss. An unusual silver double-dialed World Time keyless lever watch
Unsigned, circa 1890
With jewelled lever movement, the two tone enamel dial with outer ring calibrated for 24 hours, Roman and Arabic numerals, divided into sections for diurnal and nocturnal hours, inner revolving ring calibrated in brightly coloured enamel names of various cities of the world, each representing a different time zone, the reverse dial also calibrated with brightly coloured enamel names of forty three different cities of the world, inner revolving disc calibrated from for 60 units, unsigned
63 mm. diam.
Unsigned, circa 1890
With jewelled lever movement, the two tone enamel dial with outer ring calibrated for 24 hours, Roman and Arabic numerals, divided into sections for diurnal and nocturnal hours, inner revolving ring calibrated in brightly coloured enamel names of various cities of the world, each representing a different time zone, the reverse dial also calibrated with brightly coloured enamel names of forty three different cities of the world, inner revolving disc calibrated from for 60 units, unsigned
63 mm. diam.